// 云函数入口文件
const cloud = require('wx-server-sdk')

cloud.init()

const db = cloud.database();

const _=db.command;
// 云函数入口函数
exports.main = async (event, context) => {
  try { 
    return await db.collection("bills").where({
      today:_.gte(event.start).and(_.lte(event.end)),
      userInfo:event.userInfo
    }).get();
  } catch (error) {
    
  }
 
}